Drill head



F. E. SACKRIDER DRILL HEAD Jan. 8 1924. 1,479,872

Filed Jan. 21. 1922 A TTOR/VEYS yatented Jan. 8, 1924.

Ui l'lTED S'IATESv team FRANK EDWARD SACKRIDEB, F BILLINGS, GKLAHOMA.

DRILL HEAD.

Application filed January 21, 1922. Serial are. 530,985.

To all whom it may} concern:

Be it known that I, FRANK EDWARD SACK- nnonn, a citizen of the United.States, and a resident of Billings, in the county of Noble and State ofOklahoma, have invented cer tain new and useful Improvements in l)r1llHeads, of which the following is a specification. I

This invention relates to drill headsespecially adapted for applicationto the upper ends of well casings.

An important object of this invention to provide a drill head havingnovel means whereb tools such as cutters may be intro- 15 duced into thecasing by way .of the drill head. I

The invention forming the subject matter of this ap lication aims alsoto provide a drill head aving an annular nozzle for d1- recting steamdown into the casing for ex.-

tinguishing fires Within the well while the well is bein drilled.

Other ObJGQlSS and advantages of the invention will be apparent duringthe course of the following description.

. In the accompanying drawing forming a part of this application and inwhich like numerals are employed to designate like parts throughout thesame,

Figure 1 is a plan view of-the improved .drill head,

Figureizlijs' a central vertical sectional view through the sameapplied.

In the'drawing wherein for the purpose of illustration is shown apreferred embodiment of the invention the numeral 5 generally designatesthe cylindrical body of the improved drill head which as illustrated inFigure 2 is provided with a longitudinally extending opening 6 havingone end portion enlarged and screw-threaded for receiving the upper endof the well casing 7. The well casing 7 is of course inserted into thewell hole 8 and receives cutters and other tools which are lowered tothe terminal of the casing for deepening the well or for performingother well known operations.

Theupper end of the cylindrical body 5 is provided with a graduallyreduced opening 10 which at its lower end is the same d ameter as theopening 6 and has communication with the same so that the tools and thelike inserted through the gradually re- The body 5 is providedintermediate its ends with a radially extending nipple 12 which isinteriorly screw-threaded for receiving the discharge end of a steamconveying pipe 14. As illustrated in Figure 2 the radial nipple 12discharges into an annular'spray nozzle 16 which surrounds thelongitudinal openin 6 in the body 5. The annular spray nozz e 16 has itswalls arranged obliquely with relation to the longitudinal axis of thebody or inclined downwardly so that the steam discharged through theopen lower end of the nozzle will be directe toward the lower end of thewell casing for extinguishing fires within the well casing. In the useof the invention the cylindrical body 5 is threaded on the upper end ofthe wel casing 7 and tools or the like ma be introduced into the wellcasing throng the gradually reduced entrance opening 10 and thecylindrical passage 6 which is of a diameter equal to the diameter ofthe bore of the well casing.

Should a fire occur within. the well casing steam may be introduced intothe easing from the downwardly extending annular nozzle 16 which opensinto the intermediate portion of the passage 6. The presence of theannular spray nozzle 16 does not in any way interfere with the insertionor removal of tools or bailers since the spray nozzle does not extendinto the opening 6. Having thus described the invention, what I claimis 1. A drill head for oil well casings comprising a body having alongitudinally extending opening adapted for alignment with a wellcasing, the intermediate portion of said body being provided with anannular spray nozzle communicating with and sur rounding saidlongitudinally extending opening and being approximately in the shape ofa truncated cone whereby to direct the steam downwardly and obliquely ofthe longitudinal axis of the body, said body being provided with meanswhereby said nozzle may be connected to a source of steam supply. 4

2. A drill head for oil well casings comprising e oylindrieni bodiyhaving means whereby the some may be attached ie the 11pper end of aWell casing and being provided "with a iongitudinaiiy extendling openingadapted for alignment with the Well casing, the intermediate portion ofsaid body being provided with an annular steam sprey nozzie surroundingseidi opening and directing the steam downwardly and obliquely of thelongitudinmlnxis of the body, said body be, ing proyiCiM-yvifinh meanswhereby the nozzie may be connected to a source of steam supply i v ED'WSAGKRIDER.

